I logged a case with Symantec Technical Support regarding Backup Exec Remote Agent crashing when I tried to backup SharePoint 2010 Server Farm in early April.
After a few attempts of verifying the configuration and troubleshooting, I was given a temporary workaround to bypass the SharePoint backup so that I can backup the content databases. I have described how to do it in Bypassing Symantec Backup Exec 2012 SharePoint backup.
My case was escalated to Symantec Engineering Team with lots of logs collected. In early May, Symantec had identified the cause of the issue was because my SharePoint 2010 Server Farm has more than 200 content databases. The http://www.symantec.com/docs/TECH205286 Symantec article describes the issue.